As mentioned, you never see very many old ARFs even in the high dollar giant planes. I'm A kit and plans guy myself but when it comes to trainers the ARFs are just too easy for me. If you get two people to solo on A trainer it has more then served it's purpose in life.
My last one was given to me and really old. I can't even say if it was an ARF or not it had been repaired so many times plus had things changed? I got my last two students trained on it and they were both flying it even after there solo. Then one day there was A little cross wind and A brain fart.
Now I'm looking at the LT 40 ARF because of A time thing. I think maybe an ARF right now with A kit on the bench for the back up.
Just thinking ahead.